211010012001211 has 4 divisors (see below), whose sum is σ = 211022652646432. Its totient is φ = 210997371355992.

The previous prime is 211010012001203. The next prime is 211010012001241. The reversal of 211010012001211 is 112100210010112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211010012001211 - 2³ = 211010012001203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211010012001191 and 211010012001200.

It is not an unprimeable number, because it can be changed into a prime (211010012001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6320297571 + ... + 6320330956.

It is an arithmetic number, because the mean of its divisors is an integer number (52755663161608).

Almost surely, 2^{211010012001211} is an apocalyptic number.

211010012001211 is a deficient number, since it is larger than the sum of its proper divisors (12640645221).

211010012001211 is a wasteful number, since it uses less digits than its factorization.

211010012001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640645220.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211010012001211 its reverse (112100210010112), we get a palindrome (323110222011323).

The spelling of 211010012001211 in words is "two hundred eleven trillion, ten billion, twelve million, one thousand, two hundred eleven".